Introduction
EZ3 (EZ Series) is an indoor, compact, low cost easy to use ultrasonic range sensor with narrower beam width than other EZ2 Series Ultrasonic sensor from MaxBotix. EZ3 is a narrow beam sensor with good side object rejection and it has slightly wider beam width than the EZ4 which makes it a good choice for when the EZ4 does not have enough sensitivity for the application. It gives range output in terms of analog voltage, serial data and PWM signals. You can cascade many of these sensors together to take distance reading of the surrounding area without any interference from the adjacent sensor.
To select correct sensor for your application refer to Sensor Selection Guide
With 2.5V - 5.5V power the EZ3 provides very short to long-range detection and ranging, in an incredibly small package. It detects objects from 15cm to 645 cm (6 inches to 254 inches) with the resolution of 2.5cm (1 inch). Objects closer than 6 inches range as 6 inches. It gives range output in the Analog, Pulse Width Modulation (PWM) and in the serial format which makes it very convenient for interfacing. EZ0 to EZ4 sensors have progressively narrower beam width. Select sensor according to your application.
Specifications
- Wide Beam angle (EZ3 sensor Beam width explanation)
- Range: 15cm to 645cm (6 inches to 254 inches)
- Resolution: 2.5cm (1inch)
- 2.5V to 5.5V supply with 2mA typical current draw
- Range data output format:
-Analog: (Vcc/512)/inch
-Pulse Width Modulation (PWM): 147uS / 2.5cm or 147uS / inch
-Serial (9600 baud rate)
- Data refresh rate: Up to 50 milliseconds (20Hz)
- Free run mode operation: continually measure and output range information
- Triggered mode operation: provides the range reading as desired
- Sensor operating frequency: 42KHz
Dimensions
Documents
EZ3 sensor datasheet
EZ3 sensor Beam width explanation
Maxbotics FAQ
Sensor Selection Guide:
| |
LV-MaxSonar-EZ |
XL-MaxSonar-EZ |
XL-MaxSonar-AE |
XL-MaxSonar-WR |
XL-MaxSonar-WRA |
| Maximum range |
254 inches
(6.45meters) |
765cm / 1068cm
(model specific) |
765cm / 1068cm
(model specific) |
765cm / 1068cm
(model specific) |
765cm / 1068cm
(model specific) |
| Data output |
Analog, Serial, PWM |
Analog, Serial, PWM |
Analog, Serial |
Analog, Serial, PWM |
Analog, Serial |
|
Real time analog output of the Acoustic Waveform
|
No |
No |
Yes |
No |
Yes |
| Distance Resolution |
1 inch< |
1cm |
1cm |
1cm |
1cm |
| Readings per second |
20 |
10 |
10 |
10 |
10 |
| Current at 3.3V / 5V |
1.6 / 1.9mA |
2.1 / 3.4mA |
2.1 / 3.4mA |
2.1 / 3.4mA |
2.1 / 3.4mA |
| Aucstic frequency |
42KHz |
42KHz |
42KHz |
42KHz |
42KHz |
| Working conditions |
Indoor |
Indoor |
Indoor |
Outdoor (IP67 rating) |
Outdoor (IP67 rating) |
|
Area of Usage
|
Hobby |
Hobby / Industry |
Hobby / Industry |
Industry / Hobby |
Industry / Hobby |
Automatic Calibration to
Compensate for Changes
in Temperature, Voltage,
Humidity and Noise. |
On Power up only |
Real-Time |
Real-Time |
Real-Time |
Real-Time |
Trigger or Free-run
Operation |
Yes |
Yes |
Yes |
Yes |
Yes |
| Noise cancelling |
Some |
Yes |
Yes |
Yes |
Yes |
| Minimum reported distance |
6 inches |
20cm |
20cm |
25cm |
25cm |
Minimum Object Detection
Distance(1) |
0 inches |
0cm |
0cm |
0cm |
0cm |
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